[erhk]

Natural immunity isnt viable for the people likely to perish if they are infected.

Yes you should get vaccinated even if you tested positive because false positive tests can occur.

There is no verifiable record of anyone having been sick with covid in the same way that there is for vaccination.

"Immune system robustness" is not something quantifiable or comparable in human populations to my knowledge. We can identify immune system weaknesses or compromise but I do not know of a metric to rank individuals relative to each other.

[EGreg]

I thought it would be clear — I am talking about the push for people who already got immunity to the virus from beating a serious case, to get vaccinated. While there are still tons of people who need the vaccine, they are pushing everyone indiscriminately in many cities like NYC and not allowing people into establishments unless they had been vaccinated. But in Austria they are looking to simply force everyone to get it.